// Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com
// Copyright 2002 Albert Cahalan
//
// This file is placed under the conditions of the GNU Library
// General Public License, version 2, or any later version.
// See file COPYING for information on distribution conditions.

#include <stdlib.h>
#include <stdio.h>
#include "alloc.h"

void *xcalloc(void *pointer, int size)
{
	void *ret;
	free(pointer);
	if (!(ret = calloc(1, size))) {
		fprintf(stderr, "xcalloc: allocation error, size = %d\n", size);
		exit(1);
	}
	return ret;
}

void *xmalloc(unsigned int size)
{
	void *p;

	if (size == 0)
		++size;
	p = malloc(size);
	if (!p) {
		fprintf(stderr, "xmalloc: malloc(%d) failed", size);
		perror(NULL);
		exit(1);
	}
	return (p);
}

void *xrealloc(void *oldp, unsigned int size)
{
	void *p;

	if (size == 0)
		++size;
	p = realloc(oldp, size);
	if (!p) {
		fprintf(stderr, "xrealloc: realloc(%d) failed", size);
		perror(NULL);
		exit(1);
	}
	return (p);
}
